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. 2015 May 8;17(5):e113. doi: 10.2196/jmir.3975

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©Kimber P Richter, Theresa I Shireman, Edward F Ellerbeck, A Paula Cupertino, Delwyn Catley, Lisa Sanderson Cox, Kristopher J Preacher, Ryan Spaulding, Laura M Mussulman, Niaman Nazir, Jamie J Hunt, Leah Lambart. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 08.05.2015.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.jmir.org/, as well as this copyright and license information must be included.

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Flow of participants through the trial. Reasons for being dropped from enrolment are not mutually exclusive. Values next to the number of sessions completed represent the cumulative number of participants who completed at least that many treatment sessions. ITT denotes intention to treat.